Bobbin can for weft replenishing looms



R. G. TURNER BOBBIN CAN FOR WEFT REPI.|EN]SH]NGrl LOOMS Nov. 21, 1944.

Filed May 27,l 1944 2 shees-sheet will Ffd

FIG. 4

/NVENTOR Sd/wm 6, 5 www 'GMW fl? HW ATTORNEY Patented Nov. 21, 1944 y i UNITED l STATES PATlENT 4oriflCE f l l 2,363,100 .x BUBBIN CAN FOR WEF'l` REPLENISHING l i i LOOMS o p l RichardG. Turner, Worcester, Mass., assignorlto,`

` Crompton & KnowlesLoom Works, Worcester,`

` Mass., a corporation of Massachusetts l Application May "27, 1944, Serial No. 53735005 14 claims. (o1. 13s- 255) l This inventionrelates to improvements in re- "ceivers for the expelled bobbins of weft replenish- `inglooms and itis 4the general'object of the invention to `provide such `a receiver or can so constructed as to facilitate removal ofthe bob# i bins which accumulate in the receiver.

In `weft replenishingloomsthe depleted bobbin -is ordinarily expelled downwardly` from the 'lay into a receiver or can supported `either on the oor or someiixedpart of the loom.` It is customary practice to make the bobbin cans `asi deep as possible so thatfthey can-hold a large number of exhausted bobbins, but with this construction the emptying ofthe jcanor'receiver is laborious.

It is an important; object of my present invention `to'provide a bobbin can or receiver `having an rinclined floor and Va manually closed dooron the frontthereof tohold` the expelled bobbinin the can, but movable forwardly so that'lbo'bbins can slide down the inclined floor into a portable care,`

rier.

Weft replenishing looms customarilyhave bobend of a weft 4replenishi'ng `loom havingmy improved bobbincan applied thereto,4 ,i

outgoing bobbinsltoward `the frontwall of the `bobbin can. By this arrangement the expelled bobbin can then.` fall on the otherbo-bbins in the can without damaging` the latter, somewhat in the manner set forth in `my copending` application `Serial No; 523,996, filed `February 26,` 1944. In

this connectionxthe bobbinchute isso located that 'it causes the outgoingfbobbin` tostrike the prep viously mentioned door above its pivot so that the`bobbinwill `exert no force tending to open itwat the timeof `a replenishing operation.

`It is another yobject of my present inventionito Y,provide the door with an `upward extension' having a hand hold so located `that whenthe can is removed from `'the loom Aitsxvveightwilltend to hold the door closed and'prevent accidental discharge ofthe bob-bins in the lcan.

, vices act `to pusha full bobbin into the shuttle f and at thesame time expel the exhausted bobbin l out ofthe `shuttle during a replenishing opera- With these and"other.objectsfinview: which venient `embodiment ofmy invention isset forth,

Fig. l is a frontlelevationif-thefreplenishing Fig. 32 is aJsideelevatidn,looking from right? of Fig. 1,` ff Fig. 3 is an enla bobbin can, f t 3 1 H y Fig; `l` is a verticali sectiononlline 4--4 ofFig 3 showing the door in fulllines in normal position andin dot anddash lines in* bobbinldischarging position, i i l y .i

Fig. 5 is a plahviewof the bobbin can shown inFig.3,`

rged from; elevation of the Fig. 6 is a detailvertical section online 6 3, l

Fig. 3, showingthe manner of `discharging bob,-

bins from thecan, and

Fig.` 7 is a perspective view showin'gthe bobbin'chute `andits relationto the back and `side walls of the bobbin can, land looking generally in the direction of arrow 1,Fig. 4.

Referring particularly to Figs." 1 and 2,1 have shown a loom frame lfhaving a lay` Il mounted on` swords I2, one of `vvhichis shown in Fig. 11, `for backward and forwardvswin'ging whendriven by its connectors is.` The lay has a shuttle box through which anfexhausted` or "empty bobbin may be expelledrdownwardly during "a replenish"` ing 'operationwhen renewal "of lvveftin the` shuttle Sis required. t

`The lay has secured theretoa downwardly ex-v tending bobbin` guide 2o under theopening I8` to "assist in` directingthefoutgoing bobbin along va forwardly and `dovvnwardlyiinclined,path. "This i guide may be `provided'withra sidewall 2l for engagement with the` butt of the bobbin `to move the latter and thebobbin tothe right `as viewed in Figli during its downward movement. i f

The matter thus far described maybe" ofl common construction and of itselfformsno partof my `present 1 invention. Wellfknown mechanism operatesto` detect thecondition of weft onthe z bobbin in the shuttle and other Well-known de- In carrying? my presentinventioninto effect I u provide aniznprovedcan or receiver for the expelled bobbns as they move 'downwardly from thelguide 20. Accordingly, Iprovide a stand25 boltedas at 26 toltheloom frame I0 and having `a horizontal platform 21 `to which is secured a plate or block 28. The latter may conveniently be made of wood and attached at 23 to the platform.

The bobbin can or receiver designated generally at C may be made of light sheet metal and has right and left side walls 3U and 3|, see Figs. l and 3, which are connected by a rear or back wall 32 extending ksillbstantially vertically as shown in Fig. 4. The can is provided with a bottom plate 35 which may be formed of wood and held to the sides and back as by wood screws 36. The plate 35 is above the bottom of the sides and back so that the latter may project downwardly around the block 2 8. A front guard 31 may exis preferably made of wood and the pivotal connections 4| may take the form of bolts or -screws passing through the side walls and into the member 40. The pivoted or hinged connection between the front wall and the side walls provided bythe bolts 4| is located a considerable distance above the bottom 35 but is nevertheless spaced below the top of the can.

A false bottom 45 is inclined downwardly and forwardly and extends between the side walls and forwardly from the back wall 32. This false bottom may be made of any convenient thin sheet material and has its forward end secured to the plate 35 as by screws 4B passing through a wedge shaped strip 41 extending across the front edge of the plate 35. The false bottom is chosen of such width that it will engage the back wall 32 as indicated in Fig. 4 so that support for its rear end or edge '48 is not necessary.

As shown in Fig. 4 the bottom of the door or front wall 4|) extends down in front of the bottom plate 35 and is held in that position by a tension spring 50 extending backwardly and forwardly close to wall 3| and connected as at 5| to the door below the hinge or pivotal connection 4| and connected to the back wall 32 as at 52. Spring 50 normally holds the door or front wall in the position shown in Fig. 4 and the bottom plate 35 serves as a stop to hold the front wall in normal vertical position. The spring is amply strong to prevent a'full complement of bobbins in the can from opening the Adoor by their weight.

The rear wall 32 is provided with a bobbin guiding or directing member 55shown more particularly in Figs. 2, 4,y 5 and '1. This member is made preferably of sheet metal and has a bobbin guiding forward part or chute 56 which is curved downwardly and forwardly as set forth in Fig. 4.

`The front end of the chute is located in the bobbin can, while its rear part projects above the can` and is then bent down to form a vertical flat plate 51 extending along the inside of the wall 32, as suggested for instance in Fig. '7. In

, order to provide a resilient connection between the chute 55 and the can, a bolt 69 is passed through the plate 51 and the back wall 32 and Jis surrounded by a compression spring 6| located between the back wall and av nut 62 on the back of the bolt. The bolt head 33 engages the front of the plate 51and cooperates with the spring to provide holding means to maintain the chute in the normal position shown in Figs. 4 and 7.

It will be noted particularly in Fig. 1 that the bolt is located intermediate the bottom of the plate 51 and the top of wall 3|, and that the left edge 65 of the plate 51 extends along the corner formed by side wall 3| and back wall 32, thus positioning the latter and making it possible to hold the'chute in correct operating position by a single bolt 68.

The rear part of the front wall is provided with a cushion 10 made of shock absorbing material such as felt and located in the path of a bobbin leaving the forward edge of the chute 56. It will benoted particularly in Fig. 4 that the out-going bobbinv will move along a path such as that designated at arrow a and will exert its force on that part of the door above the pivotal connection 4|. The expelled bobbin therefore has no tendency to open the door or wall incident to a transfer operation.

The top part 15 of the door 4|] extends preferably above the side walls and has a horizontal slot 13 therein aiording a hand hold whichis above that part of the wall 40 in theA path of the expelled bobbin. a transfer operation should occur while the door is being manipulated, therefore, the operators hand will notlbe struck by the bobbin. Y

In` order to protect the operatory from injury by the lay I may employ a stop to limit rearward movement of the upper end of the wall or door 40. Thus, as shown in Figs. 2 and 3, the upper end of the side wall 3|) is provided with a hori-` zontal slot through which extends a bolt 8| holding a stop clip 82 in fixed adjusted horizontal position with respect to the side wall. This clip is in position to engage the right side of the wall 4B and limit angular movement of the latter, as suggested for instance in Fig. 2. The stop clip is so located that the bottom of the wall 43 can swing open far enough to permit the bobbins to move out of the bobbin can.

In operation, the bobbin can is held on the support 25 and an expelled bobbin moves down the lay carried guide 2| and then strikes the downwardly and forwardly inclined chute 56 and is directed by the latter toward the shock absorbing cushion 1|). The bobbin then falls to the bottom of the can, having spent its force against the front wall 40. When a considerable number of bobbins have accumulated in the can a portable receptacle R may be moved to receiving position in front of the can, and the upper part of the front wall moved rearwardly to the dot and dash line positions shown in Figs. 2,r 4 and 6. Because of the inclination of the -false bottom 45 thebobbins B will slide oi the oor 45 into the receptacle R. This operation may safely be carried on while the loom is running and without aifecting the operation of the chute 55. During pivotal movement of the door or front wall the upper part of the latter above the hinge 4| will remain in position to be engaged by an outgoing bobbin.

From the foregoing it will be seen that I have provided an improved form of weft replenishing loom bobbin can having a front wall which is pivoted intermediate its upper and lower ends and is swingable so that the bottom thereof may move away from the inclined false bottom 45 to permit accumulated bobbins to move into a receptacle R. It will also be seen that the upper endof the wall is provided with a hand hold 16j by means of which the `front wall or door fcan ybe swung fpivotally against" the :action of` spring-50. This hand hold also affords meansfor `lifting `tlie c'anf C from the support 2'5, at- Which `timeotheweight of theA can, `being behind the front `wall Jill, holds the `bottom of qthe latter 'against the` bottom plate 35'. The operator may therefore safely carry `the can by means `of the hand hold `in the upper `end of the wall"41 `It wili'also be seen that the chute 5s iss@ located thatit directs'the `outgoing bobbins toward a part of the front wall which is` above the hinge or `pivotal connection 1IH but below-the hand hold.` Furthermore, the spring El `permits for- Awardmovement `of the chute 56 relatively to the `canshould theV chute `be engaged by a misplaced lbobbin or picker stick. Also, as seen more clear- Vly in Fig. 7, the relation between the side edge 65 of the plate 5'! and the` corner defined by side wall 3l and back 32 is such that a. single securing bolt su will heid the chute sa in proper l position for operation.

ybin expelled during a replenishing l operation moves downwardly from the lay, a bobbin can below the las7 and having front and back walls,

\ a downwardly and forwardly curved bobbin chute in the path of the expelled bobbin extending from the back wall forwardly in the can toward the front wall andprojectingabove the can, and

a resilient connectionbetween the chute and back Wall of the can normally holding said chute in position to direct the expelled bobbin toward the front wall of the can, said` connection yieldable in a direction to engage the chute to move from the back wall toward `the `front wall of the can.-

' 2. In a weft replenishing loom in which a bobbin expelled during a l replenishing operation moves downwardlyfrom the lay, a bobbin can below the lay and havingfront and back walls, K

a bobbin directing member having a downward-` ly and` forwardly curved bobbin chute and an attaching plate behind the chute, and means to connect theplate to the back wall in such position as to locate the chute inthe path of the expelled bobbin with the `forward `end thereof in front of the back wall and below the top of the can to direct the expelled bobbin toward the front wall of the can.

3. In a weft.'I replenishing loom in which a bobf bin r expelled during a` replenishing operation `moves downwardlyfrom the lay, a bobbin can below the lay and having front and backgwalls, a bobbin directing member having a `downwardly and forwardly `curved bobbin chute extending forwardly in the can from the` back wall, anattaching plate behind the chute depending from the upper rear end of the latter, and connections between said plate and the back wall normally holding `the chute in the path ofthe expelled bobbin.

4. `In a weft replenishing loom in which a bobbin expelled during a replenishing operation moves downwardly from the lay, a bobbin can below the lay and having front and back walls, a bobbin directing member having a downwardly and forwardly curved bobbin chute in the can and an attaching plate secured to the chute and extending along the back wall of the can, and

` resilient means normally holding said plate against Sambeek waiito locate said chute lin the path of theexpellecl''bobbin` to direct the `latter downwardlyandforwardlyfrom the .backwalL a `front wall pivoted to said canV above said floor,`

toward the front( wall,` said` means yielding fto permit the chute and plate to move forwardly.

5.` In a weft replenishing loom in which aibobo bin expelled during a replenishing operation l movesdownwardlyv from the Slay, a bobbin can.

below the lay and` having front and back walls,

.land aside wall `forming alrear` vertical corner *with theback wall, abobbin directing member -having a downwardly and forwardly curvedbobbinchute and `a vertical plate extendingalong said` corner, and holding means passing through the plate and `Iback wall .at` a levelbetween the i top andbottomxof said plate and holdingthe for attachment"l to the back wall `of the bobbin 7. In a bobbin can for a weft replenishing loom, the can havingsi'de and back walls, a'floor extending between the. side `walls and inclined ;move the bottom of the front wall away from said door. i l 8. In a bobbin can for, a weft` replenishing loom, the can having side and back walls, a ffloor extending between the side walls, and inclined I downwardly and forwardly from the back wall, a

front door hinged to the side walls above said l floor and movable away from said door, and resilient means suiciently strong to withstand ,the force of a full complement of bobbins in said can `tending to move down said floor and normally holding the door against said floor. l

9. In a bobbin canfor a weft replenishing,

loom, the can having side and back walls, a oor extending between the side walls and inclined downwardly and forwardly from the back wall, a front door hinged to the side walls above said floor and movable away from said floor, resilient l `means normally holding the bottoni ofthe door from one side wall to the other, pivotal support means on the can for the doorbetween the `top `and bottom of the latter, means normally holding the door closed, and a hand hold onthe door above the pivotal support for swinging the top( thereof rearwardly and `the bottom thereof for` wardly away from said floor. i l

1l. In a` bobbin can for a weft replenishing loom, said can having side and back walls, a oor extending between the side walls and inclined downwardly and'forwardly from the back wall, a front door` for` the can extending vertically and from one sidewall to the other, pivotal support l v means on the can for the door between the top, and bottom of the latter, means normally holding `the door closed, and a bobbin chute positioned to direct an expelled bobbing toward a point on said door above the pivotal support,

12. In a bobbin can for a weft replenishing loom, said can having side and back walls, a floor extending between the side walls and inclined downwardly and vforwardly from the back wall, a front door for the can extending vertically and from Vone side wall to theother, pivotal support 'means on the can for'the door between the'top and bottom of the latterfmeans normally holding the door closed, a hand hold on the door above the pivotal support for swinging the topthereof rearwardly and the bottom thereof forwardly away from said oor,'and a bobbin chute positioned to direct an expelled bobbin toward a point on said door between the pivotal support and said hand hold.

13. In a bobbin can for a weft replenishing loom, said can having side and back walls and a Viioor, a front door pivoted between the top and loom, said can having side and back walls and a oor, a front door extending across the front of the can, pivotal connections between the can and' the door located between the top and bottomfof the latter, and a hand hold on the door above said pivotal connections for manual support; of the can, the weight of the can holding the bottom of the door in closed position relatively to the can when the latter is supported by the hand hold.

RICHARD G. TURNER. 

